Pipedream’s Sirius hardtail mountain bike has been around unchanged for about five years. But when it came time to update it, they were hesitant to fiddle too much. Afterall, they liked it quite a bit the way it was, so the changes were cautious, but not subtle.

The original model was built with 4130 chromoly steel. Then they upgraded it to Reynolds 631. Now, for 2013, it gets a new premium Reynolds 853 steel tube set. They also added sliding dropouts capable of moving far enough back to fit 650B wheels in the normally 26″ frame. Which also lets you run it singlespeed. Other tweaks are minor and set it up for modern 2×10 drivetrains and stronger forks, but the character remains the same.

There’s also the updated all-mountain hardtail Scion, which gets a few changes to the rear end…

Also using Reynolds 853 steel tubing, the Scion is a geared-only all-mountain style hardtail. For 2013, they gave it beefier cowled dropouts for more weldable contact area on the stays, and the seatstays were thinned a bit for a smoother ride. The changes also dropped a few grams overall.

Frame is £349, and complete bikes are available built as shown with the X-Fusion HiLo dropper post or in other configurations. New colors include a pearl midnight blue and pearl flame orange.

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